For full mmWave 5G use you would need some carrier to support it and stay within 5G cells. 5G uses a lot of power (and uses up your data plan very fast) so all those phones get throttled down to only hook on 5G when it is actually needed. One does not need it to listen to music. As 5G is not widely established yet a slower phone will practically do it well for some time.
Last edited by Less Hair; 9th May 2021 at 18:24.